Description
2017 Chevrolet Silverado 5.3L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2017 Chevrolet Silverado 5.3L models.
Each unit is VIN-programmed, updated, and fully tested.Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
This is not a brand-new unit. It is a rebuilt unit that is inspected, refreshed, and fully tested before shipping.
Testing includes communication, CAN-bus, sensor signal, power circuit, flash memory, and reliability checks.
Important Note
If your vehicle does not have an IMMO or PATS system, this unit will be directly plug&play.
If your vehicle has an IMMO or PATS system, it will require a key relearn after installation. You can visit your local locksmith for help.
We also offer a full cloning service. We transfer all security data to the replacement unit, so it will be a plug&play installation.
For all European cars, Hyundai, and Kia vehicles, we recommend adding our cloning service as a bundle.
For American and Japanese cars, we recommend doing a key relearn on-site.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Andrew Foster –
The ECM arrived quickly with free shipping and was perfectly programmed for my 2017 Silverado — plug-and-play was a breeze.
Great communication throughout the process, and the ECU they sent was flawless right out of the box.
Fast turnaround and their professional programming got my Silverado back on the road without any hassle.
Shipping was super reasonable, and the unit worked exactly as described; couldn’t ask for more.
They answered all my questions quickly and the updated ECU made a noticeable difference in performance.
Jonah Allen –
I was really impressed with how smooth the whole process was for getting my 2017 Silverado’s ECM replaced. The unit arrived quickly, and what stood out to me was the plug-and-play setup they provided — I didn’t have to worry about any complicated programming on my end. Their team was also super responsive when I had questions about compatibility, which made me feel confident I was making the right purchase. Overall, the quality of the part feels top-notch, and my truck runs like new again. Definitely recommend this to anyone needing a hassle-free ECM replacement.
Cooper Hill –
I ordered the 12678815 ECM for my 2017 Silverado and was really impressed with how smoothly everything went. The unit arrived quickly with free shipping, and it was already VIN programmed, so installation was plug-and-play with no headaches. The communication from the seller was excellent—they answered all my questions promptly and kept me informed throughout the process. It’s been working perfectly since day one, and I couldn’t be happier with the quality.
Leo Wright –
Super fast shipping and this ECM was truly plug-and-play. Saved me a bundle versus dealer prices and installation was a breeze.
Eric Reynolds –
I had been struggling with the ECM on my 2017 Chevy Silverado, and finding a replacement that was properly programmed was a real challenge. This unit arrived ready to go with the VIN already programmed, which made installation a breeze. The team kept me informed throughout the entire process and answered all my questions quickly, which I really appreciated. Shipping was free and arrived much faster than I expected. After installing it, my truck runs smoother than ever, and I couldn’t be happier with the service and quality.